I went with a man from the Ansar to one of the Companions of the Prophet ﷺ, and we said to him, "Tell us what you heard from the Messenger of Allah ﷺ mention concerning the Dajjal, and do not narrate to us from anyone else, even if that person is trustworthy."He said, "The Prophet ﷺ addressed us and said, 'I warn you of the Dajjal,' three times, 'for there was no prophet before me except that he warned his nation of him, but he is among you, this nation. He is curly-haired, ruddy in complexion, with his left eye effaced. With him are a paradise and a fire, but his fire is paradise and his paradise is fire. With him are a mountain of bread and a river of water. He causes rain to fall, but the trees do not grow. He is given power over a single soul which he kills, then revives, but he is given power over no one else. He remains on the earth for forty mornings, during which he reaches every watering place, but he does not approach four mosques, the Sacred Mosque, the Mosque of Madinah, the Mosque of at-Tur, and the Aqsa Mosque. Whatever is unclear to you, know that your Lord is not one-eyed.'"
ذهبت أنا ورجل من الأنصار إلى رجل من أصحاب النبي ﷺ، فقلنا: حدثنا ما سمعت من رسول الله ﷺ يذكر في الدجال، ولا تحدثنا عن غيره، وإن كان مصدقا، قال: خطبنا النبي ﷺ، فقال: أنذرتكم الدجال- ثلاثا- فإنه لم يكن نبي قبلي إلا قد أنذره أمته، وإنه فيكم أيتها الأمة، وإنه جعد آدم ممسوح العين اليسرى معه جنة ونار فناره جنة، وجنته نار، ومعه جبل من خبز ونهر من ماء، وإنه يمطر المطر، ولا ينبت الشجر، وإنه يسلط على نفس، فيقتلها، ولا يسلط على غيرها، وإنه يمكث في الأرض أربعين صباحا، يبلغ فيها كل منهل، ولا يقرب أربعة مساجد: مسجد الحرام، ومسجد المدينة، ومسجد الطور، ومسجد الأقصى، وما يشبه عليكم، فإن ربكم ليس بأعور.
Ahmad narrated it (23685), and this is his wording, and Ibn Abu Shayba in his Musannaf (38661) also narrated it, both through various routes from Mujahid bin Jabr, from Junada bin Umaya, who said, then he related it.Haythami said in al-Majma (7/343), "Ahmad narrated it, and its narrators are the narrators of the sahih collections."I say, it is as he said, except that the mention of Masjid Aqsa and the masjid of Tur is odd, for what is found in the sahih narrations is Masjid al-Haram and Masjid Nabawi.